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This module was developed and tested on a Grove Ultrasonic Ranger module. http://www.seeedstudio.com/wiki/Grove_-_Ultrasonic_Ranger Signed-off-by: Jun Kato <i@junkato.jp> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
46 lines
1.7 KiB
JavaScript
46 lines
1.7 KiB
JavaScript
/*
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* Author: Jun Kato <i@junkato.jp>
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* Copyright (c) 2015 Jun Kato.
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*
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* Thanks to Seeed Studio for a working arduino sketch
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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var ultrasonic = require("jsupm_groveultrasonic");
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var sensor = new ultrasonic.GroveUltraSonic(2);
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var myInterval = setInterval(function()
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{
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var travelTime = sensor.getDistance();
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if (travelTime > 0) {
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var distance = (travelTime / 29 / 2).toFixed(3);
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console.log("distance: " + distance + " [cm]");
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}
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}, 200);
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// When exiting: clear interval and print message
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process.on('SIGINT', function()
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{
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clearInterval(myInterval);
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console.log("Exiting...");
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process.exit(0);
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});
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